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Research reports

Leading academics and researchers worldwide contribute to the continued development and improvement of IELTS by undertaking funded research.

Find the latest academic research, insights, and expertise from the IELTS Partners and global experts in English Language Assessment.

Global Research in English Language Assessment and Expertise

Leading academics and researchers worldwide contribute to the continued development and improvement of IELTS by undertaking funded research. We regularly publish our research in various series.

IELTS Research Reports Online Series: Research from the joint-funded Research grants programme.

IELTS Partnership Research Papers: Research undertaken or commissioned by the IELTS Partners including the Studies in Test Comparability Series.

IELTS Research updates: Key developments about IELTS products and services.

Studies in Language Testing (SiLT): A series of academic volumes of important issues and new developments in language testing and assessment edited by Professor Lynda Taylor and Dr Nick Saville.

Research Notes: Quarterly publication reporting on matters relating to research, test development and validation within Cambridge Assessment English.

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Showing 131 results

Research Report

2 hr 27 min

Investigating the effect of interactive videos on test-takers’ performance on the listening section of IELTS

Researchers

  • Ruslan Suvorov

  • Zhi Li

Topics

  • IELTS Test - Listening and Reading

  • Technology

  • Test comparisons

Research Report

1 hr 25 min

Speaking and writing features: Distinguishing IELTS proficiency levels and progression over time

Researchers

  • Okim Kang

  • Jesse Egbert

  • Yongzhi Miao

Topics

  • IELTS Test - Speaking

  • IELTS Test - Writing

Research Report

16 min

IELTS Online: Overview

Researchers

  • Emma Bruce

  • Tony Clark

Topics

  • IELTS Test - Listening and Reading

  • IELTS Test - Speaking

  • IELTS Test - Writing

  • Impact and Washback - IELTS on Computer

  • Technology

  • Test delivery

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    Research Report

    15 min

    Review of Recommended 2-year Limit on IELTS Validity

    Researchers

    • Emma Bruce

    • Karen Dunn

    • Tony Clark

    Topics

    • IELTS Test - Speaking

    • IELTS Test - Writing

    • Impact and Washback - Stakeholder attitudes

    • Impact and Washback - Use of test scores

    Research Report

    5 min

    IELTS One Skill Retake: A Bias for Best Model

    Researchers

    • Tony Clark

    • Emma Bruce

    • Jamie Dunlea

    Topics

    • IELTS Test - Listening and Reading

    • IELTS Test - Speaking

    • IELTS Test - Writing

    • Impact and Washback - Improvement in test scores

    • Impact and Washback - Use of test scores

    • Test delivery

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      Research Report

      56 min

      Investigating linkages between international students’ English language proficiency, social–contextual outcomes, and wellbeing in US universities

      Researchers

      • Nelson Brunsting

      • Qiaona Yu

      • Jon Smart

      • W Patrick Bingham

      Topics

      • Impact and Washback - Predictive validity

      • Impact and Washback - Stakeholder attitudes

      • Impact and Washback - Use of test scores

      Research Report

      4 hr 48 min

      Vietnamese IELTS learners’ perceptions of IELTS Writing Task 2 and their performance-based lexical resource

      Researchers

      • Bao Trang Thi Nguyen

      • Thi Thanh Binh Nguyen

      • Nhu Quynh Phan

      Topics

      • IELTS Test - Writing

      • Impact and Washback - Performance data of candidates and IELTS

      • Impact and Washback - Stakeholder attitudes

      • Impact and Washback - Test preparation

      Research Report

      2 hr 6 min

      The effect of screencast feedback on the performance of the IELTS essay writing component among pre-service teachers of English

      Researchers

      • Mabel Ortiz

      • Claudio Díaz

      Topics

      • IELTS Test - Writing

      • Impact and Washback - Improvement in test scores

      • Impact and Washback - Stakeholder attitudes

      • Impact and Washback - Test preparation

      • Impact and Washback - Use of test scores

      • Technology

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